Adjustable lamp-shade.



C. G. LANDERS.

ADJUSTABLE LAMP SHADE. APPLICATION FILED IAN -ZI 1915.

1,183,743. Patented Maylfi, 1916.

1H 7 q j 1| i 3 E W J2 CHARLES GTLAN'DERS, or" CEMENT, TEXAS.

'ADJUSTABLE LAMP- -SHADE.

Specification of Letters Patent. I Patfited lvlay 16, 1916.

Application filed January 2, 1915;. Serial 110.;141.

To all whom it may concern Be it known that I, CHARLES G. LANDnRs, acitizen of the United States, residing at Cement. in the county ofDallas and State of Texas, have invented certain new and usefulImprovements in Adjustable Lamp-Shades; and I do hereby declare thefollowing to be a full, clear, and exact description of the invention,such as will enable others skilled in the art to which it appertains tomake and use the same.

My invention relates to improvements in adjustable lamp shades of thetype which are arranged to shield a portion of an electric lamp andresides in the provision of a shade which may be adjusted so that thelight from a lamp may be prevented issuance at various points.

Another object of my invention is to provide means for detachablysecuring and ad justably supporting a shield or shade relative to alamp, said means being adjustable relative to the lamp and having ashield or i shade adjustably secured thereto.

Another object of importance is to generally simplify lamp shades of theabove mentioned character so as to render them more practical andefficient without increasing the cost of manufacture thereof.

The above and additional objects are accomplished by such means as areillustrated in the accompanying drawings, described in the followingspecification and then more particularly pointed out in the claim.

With reference to the drawings, wherein I have illustrated the preferredembodiment of my invention as it is reduced to practice, and throughoutthe several views of which similar reference numerals designatecorresponding parts- Figure 1 is a front elevation of my im proved shadeshowing it attached to an electric lamp, Fig. 2 is a side elevation ofmy shade, and Fig. 3 is a horizontal'sectional view taken online 33 ofFig. 1.

Referring to the drawings by characters of reference, A designates anelectric lamp mounted within a socket B of the ordinary character. Asocket clamp is detachably mounted upon the socket B and comprises apreferably cylindrical body 1 which carries at its ends laterallyextending spaced ears 2. The ears 2 are provided with alined screwthreaded apertures to receive an adjusting thumb screw 3.

The clamp 1 carries a shield or shade supporting, frame which comprisesoutwardly and. downwardly extending arms 1 and 5 that are carried by theclamp 1, arranged on opposite sides thereof and preferably formedintegral with the clamp. These arms are arrangedto engage the oppositesides of the bulb or globe of the lamp and at their lower ends arecurved inwardly as at 6 so as to conform to the curvature of the globe.

Carried on the lower ends of the arms 1 and 5 are offset parallel andright angularly extending ears 7 which are spaced from the lower end ofthe bulb or globe and are formed with alined screw threaded apertureswhich receive a thumb screw 8. In having the arms 4 and 5 adjustablyconnected at their lower ends it will be seen that the frame maybeadjusted to engage upon an electric lamp of various sizes. The arms 4and 5 are preferably formed of spring metal. v

Slidably mounted upon either of the arms 1 or 5 is a concavo-convexapproximately oval shield or shade 9 that may be formed of any suitableopaque material. This shield 9 is of less transverse and longitudinalextent than the transverse and longitudinal extent of the bulb or globeof the lamp and is of such shape as to conform to the contour of thelamp. An offset sleeve 10 is carried at the upper end of the shield orshade 9 and slidably receives the arm 5. The shield 9 is adjustablevertically relative to the arm 5 or frame and is held in adjustedposition by means of a thumb screw 11 which is carried by the sleeve 10and arranged to engage the arm which is received in said sleeve.

It will be seen that my improved shade may be readily adjusted to fitelectric lamps of various sizes and can be easily attached. The framecomprising the arms 4 and 5 also the clamp 1 may be rotatably adjustedrela- -tive to the socket B and lamp to bring. the.

shield or shade 9 at the desired point. The shield or shade 9 isvertically adjustable relative to the arms or frame and it will be seenthat the light rays from the lamp may be prevented issuance at variouspoints.

In use, the clamp 1 is secured to the socket B and by adjusting the arms4: and 5 an electric lamp of any size may be turned in the socket in theordinary manner. without interference. After the lamp A is screwed intothe socket the shield 9 is adjusted to the desired point and the arms 4and 5 may be forced apart or drawn toward one another as desired byrotating the thumb,

screw 8.

In practice, I have found that the form of my invention, illustrated inthe drawings and referred to in the above description, as the preferredembodiment, is the most eificient and practical; yetrealizing that theconditions concurrent With the adoption of my device will necessarilyvary, I desire to emphasize the fact that various minor changes indetails of construction, proportion and arrangement of parts may be resorted to, when required, Without sacrificing any of the advantages ofmy invention, as claimed. I

What is claimed is A lamp shade forvelectric lamps comprising a clamp tobe rotatably and detachably secured to a lamp socket, a pair ofdepending spring arms carried by said clamp, said arms shaped to conformto the curvature of a globe, and arranged to engage the opposite sidesof the globe, ears formed on the free ends of said arms, said ears beingparallel and extending at right angles to said arms, adjusting meansmounted in said ears to permit the arms to be adjusted upon globes ofvarious sizes, and a concavo convex shield adjustably secured to one ofsaid arms.

In testimony whereof I aflix my signature in presence of two Witnesses.

CHARLES G. LANDERS. Witnesses:

I J. V. VVRIGHT,

A. K. Sco'rr.

Copies'of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents,

- Washington, D. G.

